Comfortable, healthy and energy-neutral living

'Climate For Life'. According to that vision, Itho Daalderop, Klimaatgarant and Trans-id develop, produce and sell energy-efficient solutions in the field of heating, cooling, hot tap water, ventilation and control technology. "The sales labels of CFL Holding do not think in terms of products, but in terms of integrated system solutions," says Peter van Gameren, director of Itho Daalderop. "This is how we work on innovations that enable comfortable, healthy and energy-neutral living. With our solutions, we meet all the standards agreed in the Paris Climate Agreement, the BENG requirements and the government's ambition that all our homes must be energy neutral by 2050."

"In our projects we start from the Trias Energetica; a three-step strategy for energy-efficient (re)construction," Van Gameren said. "To reduce the energy demand of a home, residential building or residential area to a minimum, structural measures such as good insulation, balanced ventilation (WTW), triple glazing and a shower-WTW are required. The remaining energy demand can be excellently met with a heat pump based on ground energy, in combination with solar panels, for example."

New construction and existing construction

Klimaatgarant was founded in 2012 to help municipalities and property developers profitably realize energy-neutral homes, residential buildings and neighborhoods. "In doing so, we provide the complete package. From design and construction to financing and maintenance and, if desired, including a performance guarantee of up to 25 years for the installations. Hereby we offer the certainty of a low or even no energy bill, a comfortable indoor climate, sufficient fresh air and ample hot tap water; a unique combination for Dutch housing construction," says Van Gameren. "Whereas Klimaatgarant focuses on new construction projects, Trans-id supports housing corporations and investors with the project-based energy transition of existing homes. Where possible, both labels use the products that Itho Daalderop develops, manufactures and sells."

As an example, Van Gameren cites Itho Daalderop's latest generation of water-to-water heat pumps, the WPU 5G. "The WPU 5G is the best-selling ground source heat pump in the Netherlands and is produced locally in our factory in Tiel. It is a unique piece of Dutch manufacturing industry that we are extremely proud of. The combination of far fewer transport movements, the high quality we place on the components and the long life of this heat pump, results in a very favorable Life Cycle Analysis rating."

High Lindo Garden

The WPU 5G heat pumps were recently installed in residential building Hoog Lindoduin in Scheveningen, where Itho Daalderop was involved from an early project stage in thinking about a future-proof climate solution. "Housing corporation Vestia wants to make its housing stock more sustainable and achieve CO₂-neutral," says Erik Groenewoud, project consultant at Itho Daalderop. "We offer a complete solution for that, based on heat and cold storage and ventilation with heat recovery." For a properly functioning WKO system, 138 wells actually had to be drilled around Hoog Lindoduin. "Since this space was lacking, we recommended deeper wells and double soil loops. The wells are connected to individual heat pumps for each house, which provide heating and cooling via the underfloor heating. Thanks to the combination with a 150-liter storage tank, the heat pumps also meet the hot tap water needs."

Hybrid and regret-free

For existing homes that cannot immediately get rid of natural gas, the hybrid route is often an interesting option, says Marco de Jong, project consultant at Trans-id. "When the central heating boiler is younger than 8 years old (and therefore not yet written off), for example, Itho Daalderop's hybrid air/water heat pump without an outdoor part offers a good and regret-free solution. The system can be easily connected to any type of central heating system. An intelligent control system then automatically selects the heat source (boiler and/or heat pump), resulting in substantial savings on gas and CO₂ can be saved. In the future, when the house envelope is improved, the central heating boiler can easily be replaced with a hot water supply and the system functions standalone and all-electric."

The hybrid air/water heat pumps were recently installed on behalf of the Zeeuws-Vlaanderen housing corporation Woongoed in a block of houses on Axelse Bachstraat. "Another unique project is by housing corporation Wonion, which chose our Heat Pump Network. This involves connecting multiple water-to-water heat pumps to a single deep ground source. Upgrading rather than replacing the existing shell results in NOM renovations that are up to 40% cheaper. In addition, this is more circular."

Lock House

In most projects, Trans-id, Itho Daalderop and Klimaatgarant use closed soil loops. That open sources are also possible is proven by Klimaatgarant in Amsterdam, where a unique project is being realized at a unique location in the water: Sluishuis. Here, Klimaatgarant is realizing and operating the energy concept for the >300 apartments. "In Sluishuis, numerous initiatives are being taken and techniques applied to guarantee energy-neutral homes," Van Gameren says. "As tender partner of development combination VORM and BESIX RED, we have actively participated in thinking about the most energy-efficient and economic climate concept. In addition, we are responsible for the engineering, delivery and installation of the soil energy system and associated heat pumps, guaranteeing 'Climate For Life' here as well."